Condensation of Vilsmeier salts, derived from tetraalkylureas, with amidoximes: a novel approach to access N,N-dialkyl-1,2,4-oxadiazol-5-amines
作者:Dongshan Su、Haifeng Duan、Zhonglin Wei、Jungang Cao、Dapeng Liang、Yingjie Lin
DOI:10.1016/j.tetlet.2013.10.061
日期:2013.12
A novel approach, condensation of Vilsmeier salts and amidoximes, to access N,N-dialkyl-1,2,4-oxadiazol-5-amines has been developed. By this approach, a broad range of N,N-dialkyl-1,2,4-oxadiazol-5-amines, including aromatic, heteroaromatic, and aliphatic substituents, can be synthesized in good to high yields (up to 82%) under mild reaction conditions.
已经开发出一种新颖的方法,即维斯迈尔盐和酰胺肟的缩合,以得到N,N-二烷基-1,2,4-恶二唑-5-胺。通过这种方法,可以在较高的收率下(高至82%)合成高含量的N,N-二烷基-1,2,4-恶二唑-5-胺,包括芳族,杂芳族和脂族取代基。反应条件温和。